1420319

Information

• Patent Grant
• 1420319

• References
• Source

• Patent Number

  1,420,319

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1922
  104 years ago

• CPC

  • B44B3/02 - wherein plane surfaces are worked
  • B44B2700/023 - for engraving parallel lines of flat surfaces
  • Y10T408/5614 - Angularly adjustable surface
  • Y10T408/935 - including laterally movable tool-carrier
  • Y10T409/307056 - and laterally

• US Classifications

  • 033 - Geometrical instruments
  • 408 - Cutting by use of rotating axially moving tool
  • 409 - Gear cutting, milling, or planing